<template>
  <div class="table-toolbar">
    <!--顶部左侧区域-->
    <div class="flex items-center table-toolbar-left">
      <template v-if="props.title">
        <div class="table-toolbar-left-title">
          {{ props.title }}
          <n-tooltip trigger="hover" v-if="props.titleTooltip">
            <template #trigger>
              <n-icon size="18" class="ml-1 text-gray-400 cursor-pointer">
                <QuestionCircleOutlined/>
              </n-icon>
            </template>
            {{ props.titleTooltip }}
          </n-tooltip>
        </div>
      </template>
      <slot name="tableTitle"></slot>
    </div>

    <div class="flex items-center leading-none table-toolbar-right">
      <!--顶部右侧区域-->
      <slot name="toolbar"></slot>

      <!--斑马纹-->
      <n-tooltip trigger="hover">
        <template #trigger>
          <div class="mr-2 table-toolbar-right-icon">
            <n-switch v-model:value="isStriped" @update:value="setStriped"/>
          </div>
        </template>
        <span>表格斑马纹</span>
      </n-tooltip>
      <n-divider vertical/>

      <!--刷新-->
      <n-tooltip trigger="hover">
        <template #trigger>
          <div class="table-toolbar-right-icon" @click="reload">
            <n-icon size="18">
              <ReloadOutlined/>
            </n-icon>
          </div>
        </template>
        <span>刷新</span>
      </n-tooltip>

      <!--密度-->
      <n-tooltip trigger="hover">
        <template #trigger>
          <div class="table-toolbar-right-icon">
            <n-dropdown
              @select="densitySelect"
              trigger="click"
              :options="densityOptions"
              v-model:value="tableSize"
            >
              <n-icon size="18">
                <ColumnHeightOutlined/>
              </n-icon>
            </n-dropdown>
          </div>
        </template>
        <span>密度</span>
      </n-tooltip>

      <!--表格设置单独抽离成组件-->
      <ColumnSetting/>
    </div>
  </div>
  <div class="s-table">
    <n-data-table
      ref="tableElRef"
      v-bind="getBindValues"
      :striped="isStriped"
      :pagination="pagination"
      @update:page="updatePage"
      @update:page-size="updatePageSize"
    >
      <template #[item]="data" v-for="item in Object.keys($slots)" :key="item">
        <slot :name="item" v-bind="data"></slot>
      </template>
    </n-data-table>
  </div>
</template>

<script lang="ts" setup>
import { ref, unref, toRaw, computed, onMounted, nextTick } from 'vue';
import { ReloadOutlined, ColumnHeightOutlined, QuestionCircleOutlined } from '@vicons/antd';
import { createTableContext } from './hooks/useTableContext';

import ColumnSetting from './components/settings/ColumnSetting.vue';

import { useLoading } from './hooks/useLoading';
import { useColumns } from './hooks/useColumns';
import { useDataSource } from './hooks/useDataSource';
import { usePagination } from './hooks/usePagination';

import { basicProps } from './props';

import { BasicTableProps } from './types/table';

import { getViewportOffset } from '@/utils/domUtils';
import { useWindowSizeFn } from '@/hooks/event/useWindowSizeFn';
import { isBoolean } from '@/utils/is';

const densityOptions = [
  {
    type: 'menu',
    label: '紧凑',
    key: 'small',
  },
  {
    type: 'menu',
    label: '默认',
    key: 'medium',
  },
  {
    type: 'menu',
    label: '宽松',
    key: 'large',
  },
];

const emit = defineEmits([
  'fetch-success',
  'fetch-error',
  'update:checked-row-keys',
  'edit-end',
  'edit-cancel',
  'edit-row-end',
  'edit-change',
]);

const props = defineProps({ ...basicProps });
const deviceHeight = ref(150);
const tableElRef = ref<ComponentRef>(null);
const wrapRef = ref<Nullable<HTMLDivElement>>(null);
let paginationEl: HTMLElement | null;
const isStriped = ref(props.striped || false);
const tableData = ref<Recordable[]>([]);
const innerPropsRef = ref<Partial<BasicTableProps>>();

const getProps = computed(() => {
  return { ...props, ...unref(innerPropsRef) } as BasicTableProps;
});

const tableSize = ref(unref(getProps as any).size || 'medium');

const { getLoading, setLoading } = useLoading(getProps);

const { getPaginationInfo, setPagination } = usePagination(getProps);

const { getDataSourceRef, getDataSource, getRowKey, reload } = useDataSource(
  getProps,
  {
    getPaginationInfo,
    setPagination,
    tableData,
    setLoading,
  },
  emit
);

const { getPageColumns, setColumns, getColumns, getCacheColumns, setCacheColumnsField } =
  useColumns(getProps);

//页码切换
function updatePage(page) {
  setPagination({ page: page });
  reload();
}

//分页数量切换
function updatePageSize(size) {
  setPagination({ page: 1, pageSize: size });
  reload();
}

//密度切换
function densitySelect(e) {
  tableSize.value = e;
}

//获取表格大小
const getTableSize = computed(() => tableSize.value);

//组装表格信息
const getBindValues = computed(() => {
  const tableData = unref(getDataSourceRef);
  const maxHeight = tableData.length ? `${ unref(deviceHeight) }px` : 'auto';
  return {
    ...unref(getProps),
    loading: unref(getLoading),
    columns: toRaw(unref(getPageColumns)),
    rowKey: unref(getRowKey),
    data: tableData,
    size: unref(getTableSize),
    remote: true,
    'max-height': maxHeight,
    title: '', // 重置为空 避免绑定到 table 上面
  };
});

//获取分页信息
const pagination = computed(() => toRaw(unref(getPaginationInfo)));

function setProps(props: Partial<BasicTableProps>) {
  innerPropsRef.value = { ...unref(innerPropsRef), ...props };
}

const setStriped = (value: boolean) => (isStriped.value = value);

const tableAction = {
  reload,
  setColumns,
  setLoading,
  setProps,
  getColumns,
  getDataSource,
  getPageColumns,
  getCacheColumns,
  setCacheColumnsField,
  emit,
};

const getCanResize = computed(() => {
  const { canResize } = unref(getProps);
  return canResize;
});

async function computeTableHeight() {
  const table = unref(tableElRef);
  if (!table) return;
  if (!unref(getCanResize)) return;
  const tableEl: any = table?.$el;
  const headEl = tableEl.querySelector('.n-data-table-thead ');
  const { bottomIncludeBody } = getViewportOffset(headEl);
  const headerH = 64;
  let paginationH = 2;
  let marginH = 24;
  if (!isBoolean(unref(pagination))) {
    paginationEl = tableEl.querySelector('.n-data-table__pagination') as HTMLElement;
    if (paginationEl) {
      const offsetHeight = paginationEl.offsetHeight;
      paginationH += offsetHeight || 0;
    } else {
      paginationH += 28;
    }
  }
  let height =
    bottomIncludeBody - (headerH + paginationH + marginH + (props.resizeHeightOffset || 0));
  const maxHeight = props.maxHeight;
  height = maxHeight && maxHeight < height ? maxHeight : height;
  deviceHeight.value = height;
}

useWindowSizeFn(computeTableHeight, 280);

onMounted(() => {
  nextTick(() => {
    computeTableHeight();
  });
});

createTableContext({ ...tableAction, wrapRef, getBindValues });

defineExpose(tableAction);
</script>
<style lang="less" scoped>
.table-toolbar {
  display: flex;
  justify-content: space-between;
  padding: 0 0 16px 0;

  &-left {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex: 1;

    &-title {
      display: flex;
      align-items: center;
      justify-content: flex-start;
      font-size: 16px;
      font-weight: 600;
    }
  }

  &-right {
    display: flex;
    justify-content: flex-end;
    flex: 1;

    &-icon {
      margin-left: 12px;
      font-size: 16px;
      cursor: pointer;
      color: var(--text-color);

      :hover {
        color: #1890ff;
      }
    }
  }
}

.table-toolbar-inner-popover-title {
  padding: 2px 0;
}
</style>
